345420204 has 24 divisors (see below), whose sum is σ = 824725440. Its totient is φ = 112462224.

The previous prime is 345420199. The next prime is 345420211. The reversal of 345420204 is 402024543.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 334194 + ... + 335225.

It is an arithmetic number, because the mean of its divisors is an integer number (34363560).

Almost surely, 2^345420204 is an apocalyptic number.

It is an amenable number.

345420204 is an abundant number, since it is smaller than the sum of its proper divisors (479305236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

345420204 is a wasteful number, since it uses less digits than its factorization.

345420204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669469 (or 669467 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 345420204 is about 18585.4836902352. The cubic root of 345420204 is about 701.6425400673.

Adding to 345420204 its reverse (402024543), we get a palindrome (747444747).

The spelling of 345420204 in words is "three hundred forty-five million, four hundred twenty thousand, two hundred four".